Question about Kenwood VR-707 Receiver

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Shutting itself down

My receiver shuts itself down and the power button blinks like it's overloaded. Took off the cover and it does not look too bad?

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  • Anonymous Dec 19, 2007

    power button blinks

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Its usually not a fault that you will see unless somethings burnt up. This is solid state electronics and you dont see this stuff go bad. But in the meantime try disconnecting the speakers and see if it still goes into shutdown and at the same time have a dc multimeter attached to the speaker outputs. If the unit comes on and you dont see any DC at all or very very little B+ on both speaker terminal sets then you may have a defective speaker. If you do see dc then thats why the protections comming on so you dont blow out your speakers. If you dont have any equipment or dont have any electronics experience I would then take the unit to a repair person for an estimate. Good Luck

Posted on May 07, 2006

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I have a kenwood VR-305, for no reason it would shut down. Some times it would work fine for a while and some times it would shut down as soon as you would turn it on. I checked websites for trouble shooting and called Kenwood, not much help. It would shut down if you were to flip the speaker jack inputs. I took it apart thinking it had something to do with the speaker jacks. What I found was a cracked solder connection, the location was at the very back and bottom of circuit board unit, which one of the back screws that holds on the speaker jack goes into the back pannel and connects part of the speaker jack to the circuit board to complete the circuit. I resolder the connection and now it works great.

Posted on Mar 03, 2007

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Have you provided adequate ventilation?
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Help


Hi,

Take every single cable out of the unit, now power on the unit.

If the power protection still shows then there is an internal fault, usually a short or a component defect.

If it powers on ok, switch off and insert 1 speaker at a time and power on the unit until the protection mode comes on again, the last speaker you have put in has overloaded it for some reason, also as you are trying each speaker use the volume and bass controls to see if there is an internal overload.

Thats as much as I can offer you until you narrow the fault down to the unit or one of the speakers.

Cheers

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Your need indentificate and change the transistors.

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